CVE-2021-39990

9.8 criticalEPSS 0.8%

Critical (9.8) in huawei harmonyos. EPSS 0.8% chance of exploitation in the next 30 days.

The screen lock module has a Stack-based Buffer Overflow vulnerability.Successful exploitation of this vulnerability may affect user experience.

Severity

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2022-01-03
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19